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公开(公告)号：US08841828B2
公开(公告)日：2014-09-23
申请号：US14235824
申请日：2012-06-08
摘要： A spark plug has a center electrode having an electrode base member and a core material which is disposed in the electrode base member and which predominantly contains copper, and a noble metal tip disposed at a forward end of the center electrode, and a fusion portion formed between the noble metal tip, and the electrode base member and the core material. The fusion portion is in contact with the core material in a cross section which is parallel to the center axis of the center electrode and which passes through the center axis and the fusion portion. The fusion portion contains a component of the noble metal tip, a component of the electrode base member, and a copper component forming the core material.
摘要翻译： 火花塞具有中心电极，该中心电极具有设置在电极基体中并且主要包含铜的电极基体和芯材，以及设置在中心电极前端的贵金属电极头和形成的熔融部分 在贵金属端头与电极基体和芯材之间。 熔接部与芯材以与中心电极的中心轴平行且穿过中心轴和熔融部的横截面接触。 熔融部包含贵金属电极头的成分，电极基体的成分和形成芯材的铜成分。
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公开(公告)号：US20130328477A1
公开(公告)日：2013-12-12
申请号：US13883316
申请日：2011-08-23
申请人： Kohei Katsuraya , Tatsunori Yamada
发明人： Kohei Katsuraya , Tatsunori Yamada
IPC分类号： H01T13/34
摘要： An ignition plug includes an insulator having an axial bore extending in the direction of an axis and an electrode inserted into the axial bore, and generates plasma discharge through supply, to the electrode, of high-frequency power generated by a predetermined high-frequency power supply. The electrode includes a center electrode inserted into the forward side of the axial bore and a terminal electrode inserted into the rear side of the axial bore. In the axial bore, the terminal electrode and the center electrode are fixed to the insulator by means of a glass seal which contains a glass component, and are in direct contact with each other. Thus, ignition performance can be further improved.
摘要翻译： 火花塞包括具有在轴线方向上延伸的轴向孔和插入到轴向孔中的电极的绝缘体，并且通过向电极向电极产生由预定高频电力产生的高频电力的等离子体放电 供应。 电极包括插入轴向孔的前侧的中心电极和插入轴向孔的后侧的端子电极。 在轴向孔中，端子电极和中心电极通过包含玻璃部件的玻璃密封件固定到绝缘体上，并且彼此直接接触。 因此，可以进一步提高点火性能。
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公开(公告)号：US20120126681A1
公开(公告)日：2012-05-24
申请号：US13198065
申请日：2011-08-04
IPC分类号： H01T13/04
摘要： High-frequency plasma spark plug includes an insulator which has an axial hole extending in the axis direction, a center electrode inserted into a distal end side of the axial hole, a terminal electrode inserted into a rear end side of the axial hole, and being electrically connected to the center electrode, and a cylindrical main fitting mounted on an outer periphery of the insulator. With respect to a coaxial cable, the inner conductor is connected to the terminal electrode and the outer conductor is connected to the main fitting. High frequency power generated by a predetermined high-frequency power source is supplied via the coaxial cable thus generating high frequency plasma. The main fitting includes a large diameter portion which bulges radially outward and a connection portion which is brought into contact with the outer conductor.
摘要翻译： 高频等离子体火花塞包括：具有沿轴向延伸的轴向孔的绝缘体，插入到轴孔的前端侧的中心电极，插入轴孔的后端侧的端子电极， 电连接到中心电极，以及安装在绝缘体的外周上的圆柱形主配件。 对于同轴电缆，内部导体连接到端子电极，外部导体连接到主配件。 由同轴电缆提供由预定的高频电源产生的高频功率，从而产生高频等离子体。 主配件包括径向向外凸出的大直径部分和与外导体接触的连接部分。
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公开(公告)号：US07635826B2
公开(公告)日：2009-12-22
申请号：US11811971
申请日：2007-06-13
CPC分类号： F23Q7/001 , F02P19/028 , F23Q2007/002
摘要： A glow plug includes a heater member; heater power lead wires which extend rearward along an axis and whose conductors electrically communicate with one and of a heater conductor for supply of power; a sensor, portion for detecting the combustion pressure of an internal combustion engine; a sensor connection line connected to the sensor portion and extending rearward along the axis; a housing; a sensor-portion-enclosing tube; and a grommet formed from an insulating rubber-like elastic material, having insertion holes through which the heater power lead wires and the sensor connection line are respectively inserted, the grommet liquid-tightly closing an end portion of the sensor-portion-enclosing tube and liquid-tightly holding the heater power lead wires and the sensor connection line.
摘要翻译： 电热塞包括加热器构件; 加热器电源引线沿着一个轴向后延伸并且其导体与一个和一个加热器导体电连通以供电; 用于检测内燃机的燃烧压力的传感器部分; 连接到传感器部分并沿着轴向向后延伸的传感器连接线; 房屋; 传感器部分封闭管; 以及由绝缘橡胶状弹性材料形成的索环，具有分别插入加热器电源引线和传感器连接线的插入孔，密封封闭传感器部封闭管的端部的密封垫， 液体密封保持加热器电源引线和传感器连接线。
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5.发明授权Method of detecting spark plug fouling and ignition system having means for carrying out the same 失效火花塞污垢检测方法及具有进行火花塞污染的点火系统的方法公开(公告)号：US06512375B1
公开(公告)日：2003-01-28
申请号：US09655764
申请日：2000-09-05
申请人： Tatsunori Yamada , Yasushi Sakakura
发明人： Tatsunori Yamada , Yasushi Sakakura
IPC分类号： F02P1700
CPC分类号： F02P17/12
摘要： A method of detecting spark plug fouling in an internal combustion engine is provided. The method comprises calculating an integration value of discharge current flowing between electrodes of a spark plug during a period of a spark discharge and judging if the calculated discharge current integration value is smaller than an integration value criterion. The integration value criterion is set at such a value that can discriminate between normal discharge and interior jumping (i.e., jumping due to short circuit caused by fouling). When the calculated discharge current integration value is smaller than the integration value criterion, it is judged that the spark plug has been fouled. By this, it becomes possible to detect a spark plug fouling before the electrodes of the spark plug are short-circuited and disabled to generate spark discharge, i.e., before the spark plug is fouled to such an extent as to cause a misfire. An ignition system for detecting spark plug fouling is also provided.
摘要翻译： 提供一种检测内燃机中火花塞污垢的方法。 该方法包括计算在火花放电期间在火花塞的电极之间流动的放电电流的积分值，并判断所计算的放电电流积分值是否小于积分值准则。 积分值准则被设定为可以区分正常放电和内部跳跃（即，由于结垢引起的短路而跳跃）的值。 当计算出的放电电流积分值小于积分值准则时，判断火花塞已被污染。 由此，可以在火花塞的电极短路并且不能产生火花放电之前，即在火花塞被污染到导致失火的程度之前，检测火花塞污垢。 还提供了一种用于检测火花塞污垢的点火系统。
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公开(公告)号：US4051888A
公开(公告)日：1977-10-04
申请号：US646833
申请日：1976-01-05
申请人： Tatsunori Yamada , Shigeru Mori , Kaoru Kato , Yasuyuki Arai , Katumi Sakitani
发明人： Tatsunori Yamada , Shigeru Mori , Kaoru Kato , Yasuyuki Arai , Katumi Sakitani
CPC分类号： F25B23/00 , C09K5/063 , F25D17/02 , F25D5/00 , F25B2315/003 , F25D2303/085
摘要： A low temperature energy carrying apparatus and method adapted for central cooling which comprises a hydrate circulating system for a liquid hydrate agent and hydrate crystals incorporated with a conventionally designed water circulating system. In the hydrate circulating system, the hydrate crystals are feed to the users side together with cooled water and decomposed therein into hydrate agent and cooled water absorbing the latent heat of decomposition. Therefore, the temperature of the cooled water during transport thereof to the users side is stabilized and in addition to the sensible heat of the cooled water the latent heat of the hydrate crystals can be utilized in the users side, thereby improving cooling effect in the users side. Also, the hydrate circulating system is adapted to use a hydrate agent in the liquid phase area which allows the operation of the system to be stabilized.
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公开(公告)号：US20130033188A1
公开(公告)日：2013-02-07
申请号：US13565937
申请日：2012-08-03
摘要： A technique for lowering power loss involved in supply of high-frequency electric power to an ignition plug. The ignition plug includes a tubular insulator having an axial bore extending therethrough; a center electrode disposed in the axial bore; a metal terminal disposed rearward of the center electrode in the axial bore, electrically connected to the center electrode, and supplied with high-frequency electric power from an external source; a metallic shell disposed to circumferentially surround the insulator; and a ground electrode electrically connected to the metallic shell and adapted to generate plasma in cooperation with the center electrode through supply of high-frequency electric power to the metal terminal. At least a portion of the inner surface of the axial bore is coated with metal coating. The center electrode and the metal terminal are in electrical contact with the metal coating.
摘要翻译： 一种用于降低向火花塞供应高频电力的功率损耗的技术。 火花塞包括具有延伸穿过其中的轴向孔的管状绝缘体; 设置在所述轴向孔中的中心电极; 金属端子，其设置在所述轴向孔中的所述中心电极的后方，与所述中心电极电连接，并从外部源供给高频电力; 设置成周向包围绝缘体的金属壳; 以及电连接到所述金属壳并且适于通过向所述金属端子提供高频电力而与所述中心电极协作产生等离子体的接地电极。 轴向孔的内表面的至少一部分涂覆有金属涂层。 中心电极和金属端子与金属涂层电接触。
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公开(公告)号：US20070295710A1
公开(公告)日：2007-12-27
申请号：US11811971
申请日：2007-06-13
IPC分类号： F23Q7/22
CPC分类号： F23Q7/001 , F02P19/028 , F23Q2007/002
摘要： A glow plug includes a heater member; heater power lead wires which extend rearward along an axis and whose conductors electrically communicate with one and of a heater conductor for supply of power; a sensor, portion for detecting the combustion pressure of an internal combustion engine; a sensor connection line connected to the sensor portion and extending rearward along the axis; a housing; a sensor-portion-enclosing tube; and a grommet formed from an insulating rubber-like elastic material., having insertion holes through which the heater power lead wires and the sensor connection line are respectively inserted, the grommet liquid-tightly closing an end portion of the sensor-portion-enclosing tube and liquid-tightly holding the heater power lead wires and the sensor connection line.
摘要翻译： 电热塞包括加热器构件; 加热器电源引线沿着一个轴向后延伸并且其导体与一个和一个加热器导体电连通以供电; 用于检测内燃机的燃烧压力的传感器部分; 连接到传感器部分并沿着轴向向后延伸的传感器连接线; 房屋; 传感器部分封闭管; 以及由绝缘橡胶状弹性材料形成的索环，具有分别插入加热器电源引线和传感器连接线的插入孔，密封地封闭传感器部封闭管的端部 并液体保持加热器电源引线和传感器连接线。
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9.发明授权公开(公告)号：US06505605B2
公开(公告)日：2003-01-14
申请号：US09818532
申请日：2001-03-28
IPC分类号： F02P5145
摘要： A control system for an internal combustion engine is provided which comprises detecting means for detecting a discharge current flowing between electrodes of a spark plug when a high voltage for ignition is applied to the spark plug, judging means for judging whether or not the spark plug is fouled on the basis of the discharge current, and inhibiting means for inhibiting the progress of spark plug fouling when the spark plug is judged fouled. A method carried out by the control system is also provided.
摘要翻译： 提供一种用于内燃机的控制系统，其包括检测装置，用于当将点火高电压施加到火花塞时检测在火花塞的电极之间流动的放电电流;判断装置，用于判断火花塞是否为 在放电电流的基础上被污染，以及抑制装置，用于在判定火花塞被堵塞时阻止火花塞结垢的进行。 还提供了由控制系统执行的方法。
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公开(公告)号：US09316199B2
公开(公告)日：2016-04-19
申请号：US13881339
申请日：2011-08-30
IPC分类号： F02P15/00 , F02P1/08 , F02P3/04 , F02P3/00 , F02P13/00 , H01F38/12 , H01T13/04 , H01T13/20 , F02P9/00 , F02P3/05 , F02P3/09
CPC分类号： F02P15/00 , F02P1/08 , F02P1/083 , F02P1/086 , F02P3/00 , F02P3/0435 , F02P3/051 , F02P3/09 , F02P9/002 , F02P13/00 , H01F38/12 , H01T13/04 , H01T13/20
摘要： An ignition device (100) includes a power supply (2) for discharge; an AC power supply (3); an ignition coil (41) for generating a secondary voltage in a secondary coil (41B); an ignition plug (1) connected to the secondary coil (41B); an AC electrode (43) electrically connected to the AC power supply (3); a high-voltage electrode (42) located between the secondary coil (41B) and the ignition plug (1); an insulator (44) located between the two electrodes (42, 43); and a second insulator (47) which covers the ignition coil (41) and a capacitor (49) composed of the two electrodes (42, 43) and an insulator (44). The secondary voltage and AC power are supplied to the ignition plug (1) via the high-voltage electrode (42). Thus, excellent ignition performance can be implemented while the occurrence of misfire is restrained.
摘要翻译： 点火装置（100）包括用于放电的电源（2） 交流电源（3）; 用于在次级线圈（41B）中产生次级电压的点火线圈（41）; 连接到次级线圈（41B）的火花塞（1）; 电连接到AC电源（3）的AC电极（43）; 位于次级线圈（41B）和火花塞（1）之间的高压电极（42）; 位于两个电极（42,43）之间的绝缘体（44）; 以及覆盖所述点火线圈（41）的第二绝缘体（47）和由所述两个电极（42,43）和绝缘体（44）构成的电容器（49）。 次级电压和AC电力通过高压电极（42）提供给火花塞（1）。 因此，可以在抑制失火的发生的同时实现优异的点火性能。
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